论文标题

当前和未来的中微子限制了丰富的原始黑洞

Current and future neutrino limits on the abundance of primordial black holes

论文作者

Bernal, Nicolás, Muñoz-Albornoz, Víctor, Palomares-Ruiz, Sergio, Villanueva-Domingo, Pablo

论文摘要

早期宇宙中形成的原始黑洞(PBH)是通过鹰辐射发出的中微子的来源。可以在地球上检测到这种天体中性中微子,并且对彗星质量PBH的限制可以从对这种中微子通量的无效观察中得出。在这里,我们考虑使用Super-Kamiokande Neutrino数据进行非旋转PBH并改善约束,以及我们对下一代中微子(Hyper-Kamiokande,Juno,Dune)和Dark Matter(Darwin,Argo)检测器进行预测,我们可以比较。对于PBH的质量少于$ \ sim \ textrm {几个} \ times 10^{14} $ g,现在PBHS已经蒸发到现在已经蒸发了,而更大的PBHS仍然存在,并且构成了宇宙暗物质的一小部分。我们考虑单色和扩展(log-normal)质量分布,PBH质量范围从$ 10^{12} $ g到$ \ sim 10^{16} $ g。最后,我们还将结果与文献中的先前结果进行了比较。

Primordial black holes (PBHs) formed in the early Universe are sources of neutrinos emitted via Hawking radiation. Such astrophysical neutrinos could be detected at Earth and constraints on the abundance of comet-mass PBHs could be derived from the null observation of this neutrino flux. Here, we consider non-rotating PBHs and improve constraints using Super-Kamiokande neutrino data, as well as we perform forecasts for next-generation neutrino (Hyper-Kamiokande, JUNO, DUNE) and dark matter (DARWIN, ARGO) detectors, which we compare. For PBHs less massive than $\sim \textrm{few} \times 10^{14}$ g, PBHs would have already evaporated by now, whereas more massive PBHs would still be present and would constitute a fraction of the dark matter of the Universe. We consider monochromatic and extended (log-normal) mass distributions, and a PBH mass range spanning from $10^{12}$ g to $\sim 10^{16}$ g. Finally, we also compare our results with previous ones in the literature.

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